Results
Although there is controversy regarding the chemical form of chlorine and its relation to harmful effects in the hydraulic fluid (i.e., chloride ions versus organic chloro-compounds versus total chlorine in all forms), it is generally agreed that total chlorine content should be measured and controlled. In the near future, the ban on the manufacture of chlorinated solvents, out of concern for depletion of the ozone layer, may in itself diminish or eliminate chlorine contamination related aircraft malfunctions. It is generally accepted that hydraulic fluid contamination should be held to a minimum under all conditions. The benefits of low contamination levels are improved performance, lower maintenance due to lower wear, corrosion and erosion, longer fluid life, longer component life, etc. Contaminants can be classified into two general types: those that are insoluble and those that are soluble in the hydraulic fluid. The insoluble solid type is most common and is usually referred to as
This SAE Recommended Practice establishes methods to determine grade parking performance with respect to: a Ability of the parking brake system to lock the braked wheels. b The vehicle holding or sliding on the grade, fully loaded or unloaded. c Applied manual effort. d Unburnished or burnished brake lining friction conditions. e Down and up grade directions.
This SAE Aerospace Recommended Practice (ARP) provides design, operation, construction, test and installation recommendations for equipment that automatically presents supplemental oxygen masks to cabin occupants in the event of loss of cabin pressure. It specifically covers automatic presentation for transport category aircraft that operate above 30 000 ft (9144 m) altitude. It also provides guidance for similar equipment used in non-transport category aircraft, or aircraft operated below 30 000 ft (9144 m) altitude.
This SAE Recommended Practice describes two-dimensional 95th percentile truck driver side view, seated stomach contours for horizontally adjustable seats (see Figure 1). There is one contour and three locating lines to accommodate male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5.
The purpose of this SAE Recommended Practice is to establish uniform test procedures for measuring and rating air delivery and cooling capacity of truck and off-road self-propelled work machines used in earth moving, agriculture, and forestry air-conditioner evaporator assemblies. It is the intent to measure only the actual cooling capacity of the evaporator. It is not the intent of this document to rate and compare the performance of the total vehicle air-conditioning system.
This SAE Recommended Practice establishes for trucks, buses, and multipurpose passenger vehicles with GVW of 4500 kg (10 000 lb) or greater: a Minimum performance requirements for the switch for activating electric or electro-pneumatic windshield washer systems. b Uniform test procedures that include those tests that can be conducted on uniform test equipment by commercially available laboratory facilities. The test procedures and minimum performance requirements, outlined in this document, are based on currently available engineering data. It is the intent that all portions of the document will be periodically reviewed and revised as additional data regarding windshield washing system performance is developed.
This specification covers the procedures for radiographic inspection.
This document defines the test procedures and performance limits of steady state and transient voltage characteristics for 12 V, 24 V, or 48 V electrical power generating systems used in commercial ground vehicles.
This SAE Standard establishes the test procedures, performance requirements, and criteria necessary to evaluate minimum safety and reliability requirements of a children’s snowmobile as identified in 1.2.
The information in this SAE Recommended Practice has been compiled by Technical Committee 1 (Engine Lubrication) of the SAE Fuels and Lubricants Division. The intent is to provide those concerned with the design and maintenance of two-stroke-cycle engines with a better understanding of the properties of two-stroke-cycle lubricants. Reference is also made to test procedures which may be used to measure the chemical and physical characteristics of these lubricants.
This SAE Recommended Practice describes the test procedures for conducting dynamic frontal strength test for COE and other heavy trucks with forward controls. Its purpose is to establish recommended test procedures which will standardize the procedure for heavy trucks. Descriptions of the test setup, test instrumentation, photographic/video coverage, and the test fixtures are included.
This SAE Standard covers reinforced hose, or hose assemblies, intended for conducting liquid and gaseous dichlorodifluoromethane (refrigerant 12) in automotive air-conditioning systems. The hose shall be designed to minimize permeation of refrigerant 12 and contamination of the system and to be serviceable over a temperature range of −30 to 120 °C (−22 to 248 °F). Specific construction details are to be agreed upon between user and supplier.1 NOTE—R12 refrigerant has been placed on a banned substance list due to its ozone depletion characteristics. SAE J51 specification will be phased out as new automotive A/C systems are using R134a. SAE J2064 is the Standard for refrigerant 134a hose. For refrigerant 134a use, refer to SAE J2064.
The Hose Measurement Task Force conducted a round-robin study to determine the measuring capability of automotive suppliers and users to simultaneously measure the Inside Diameter (ID), Outside Diameter (OD), Wall Thickness (Wall), and Wall thickness Variation (WV) of hose using a laser-based, non-contact LOTIS QC-20 gauging device. Three (3) companies (all end users) participated in this testing with one of the three companies performing the GR&R calculations presented herein. Based upon the round-robin study this report will detail procedures, test measuring devices, results, and conclusions.
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